package com.abcdefg.webpagechatprojectbymyself.mapper;

import com.abcdefg.webpagechatprojectbymyself.model.Friend;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

@Mapper
public interface FriendMapper {
    //根据userId获取到friendId，最后返回friendList
    List<Friend> selectFriendListByUserId(Integer userId);
}
